Battery system, battery thermal management method and device, battery management unit

A technology of battery management unit and battery thermal management, which is applied in the direction of electrical components, secondary batteries, secondary battery repair/maintenance, etc. It can solve the problems of reducing the overall energy volume density of batteries, large structural space, and increasing costs, and achieves improved Effects of life and performance, space saving, and cost saving

Active Publication Date: 2019-01-11
BYD CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These heat conduction channels need to be designed to dissipate heat so that heat can be transferred quickly and evenly, but this design will take up a large structural space, reduce the overall energy volume density of the battery, and greatly increase the cost

Method used

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  • Battery system, battery thermal management method and device, battery management unit
  • Battery system, battery thermal management method and device, battery management unit
  • Battery system, battery thermal management method and device, battery management unit

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0029] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicat...

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PUM

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Abstract

The invention discloses a battery system, a battery thermal management method and apparatus, and a battery management unit. The battery thermal management method comprises the following steps: detecting state information of each single battery among N single batteries, wherein the state information of each single battery comprises temperature information of each single battery; selecting the single battery required to be subjected to a thermal operation according to the temperature information of each single battery; controlling a thermal operation unit corresponding to the single battery required to be subjected to the thermal operation to enable the thermal operation unit to perform the thermal operation of heating / refrigerating the single battery required to be subjected to the thermal operation until the state information of all single batteries is accordant. The battery thermal management method and apparatus provided by the invention can realize battery thermal management without adding a large-space heat conductive structure, so that the space and cost are greatly reduced.

Description

technical field [0001] The present invention relates to the technical field of battery management, in particular to a battery thermal management method, a battery thermal management device, a battery management unit of the battery thermal management device, and a battery system with the battery thermal management device. Background technique [0002] Common battery system topologies such as Figure 1a and Figure 1b As shown, the heat transfer between the battery module and the battery cells is achieved through the heat conduction channels between the periphery of the battery module and the battery cells in an air-cooled / liquid-cooled manner. These heat conduction channels need to be designed to dissipate heat so that the heat can be transferred quickly and evenly, but this design will occupy a large structural space, reduce the overall energy volume density of the battery, and greatly increase the cost. [0003] Therefore, thermal management techniques for existing battery...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/42H01M10/617H01M10/635
CPCY02E60/10
Inventor 倪琰
Owner BYD CO LTD
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